void LineDiagram::LineDiagramType::paintValueTracker( PaintContext* ctx, const ValueTrackerAttributes& vt, const QPointF& at )
{
CartesianCoordinatePlane* plane = qobject_cast<CartesianCoordinatePlane*>( ctx->coordinatePlane() );
if( !plane )
return;
DataDimensionsList gridDimensions = ctx->coordinatePlane()->gridDimensionsList();
const QPointF bottomLeft( ctx->coordinatePlane()->translate(
QPointF( plane->isHorizontalRangeReversed() ?
gridDimensions.at( 0 ).end :
gridDimensions.at( 0 ).start,
plane->isVerticalRangeReversed() ?
gridDimensions.at( 1 ).end :
gridDimensions.at( 1 ).start ) ) );
const QPointF markerPoint = at;
const QPointF ordinatePoint( bottomLeft.x(), at.y() );
const QPointF abscissaPoint( at.x(), bottomLeft.y() );
const QSizeF markerSize = vt.markerSize();
const QRectF ellipseMarker = QRectF( at.x() - markerSize.width() / 2,
at.y() - markerSize.height() / 2,
markerSize.width(), markerSize.height() );
const QPointF ordinateMarker[3] = {
QPointF( ordinatePoint.x(), at.y() + markerSize.height() / 2 ),
QPointF( ordinatePoint.x() + markerSize.width() / 2, at.y() ),
QPointF( ordinatePoint.x(), at.y() - markerSize.height() / 2 )
};
const QPointF abscissaMarker[3] = {
QPointF( at.x() + markerSize.width() / 2, abscissaPoint.y() ),
QPointF( at.x(), abscissaPoint.y() - markerSize.height() / 2 ),
QPointF( at.x() - markerSize.width() / 2, abscissaPoint.y() )
};
QPointF topLeft = ordinatePoint;
QPointF bottomRightOffset = abscissaPoint - topLeft;
QSizeF size( bottomRightOffset.x(), bottomRightOffset.y() );
QRectF area( topLeft, size );
PainterSaver painterSaver( ctx->painter() );
ctx->painter()->setPen( PrintingParameters::scalePen( vt.pen() ) );
ctx->painter()->setBrush( QBrush() );
ctx->painter()->drawLine( markerPoint, ordinatePoint );
ctx->painter()->drawLine( markerPoint, abscissaPoint );
ctx->painter()->fillRect( area, vt.areaBrush() );
ctx->painter()->drawEllipse( ellipseMarker );
ctx->painter()->setBrush( vt.pen().color() );
ctx->painter()->drawPolygon( ordinateMarker, 3 );
ctx->painter()->drawPolygon( abscissaMarker, 3 );
}
bool ValueTrackerAttributes::operator==( const ValueTrackerAttributes& r ) const
{
return ( pen() == r.pen() &&
areaBrush() == r.areaBrush() &&
markerSize() == r.markerSize() &&
isEnabled() == r.isEnabled() );
}
